We can declare the schema of our data either in a . . . . . . . . file.

What is the purpose of the Hadoop InputFormat?

A. Defines how input data is read

B. Defines the map output format

C. Defines the reduce output format

D. Defines the partitioning logic

In Hadoop, what is the primary role of the RecordReader?

A. Manages computation resources

B. Reads and parses input data

C. Executes MapReduce jobs

D. Manages Hadoop ecosystem tools

What is the significance of the Hadoop OutputFormat?

A. Manage storage layer

B. Manage computation resources

C. Execute MapReduce jobs

D. Manage Hadoop ecosystem tools

In Hadoop MapReduce, what is the role of the CombineFileInputFormat?

A. Combine intermediate key-value pairs on the mapper side

B. Distribute data to reducers

C. Aggregate values on the reducer side

D. Sort and shuffle data